I recentl purchased a Smith and wesson 340 J-frame. I want to put on some CT grips. My friend has LG-305s on his they are oversized tacky rubber. The thing I dont like is the oversized part. I have been looking at the LG-105 also but they are hard polymer. I know the rubber serves to aid in felt recoil reduction. My question is who has shot or knows about both of these to tell me the difference in felt recoil between the two. This will be a pocket gun and want to keep it as small as possible.